The share of first MOT tests (cars about three years old) in 2025 that ended in an initial fail: a fail, or a fail fixed and passed at the station.
Dashed line: all cars at their first MOT, 10.9%
Models are listed A to Z within each group: this is not a league table, and a figure describes a model, not any one car. A model is left out of a group if fewer than 1,000 first tests stand behind its figure. The MOT checks safety and emissions items, not the engine, clutch or gearbox, so this is one measure of how each car holds up rather than a full reliability verdict.
Source: Autoza analysis of DVSA MOT data 2025 (opens in a new tab)
Contains public sector information licensed under the Open Government Licence v3.0.